This is a neat trick, and I've used it a lot -- but worth pointing out that this should really only be done over a local network. X11 apps tend to be VERY chatt

This is a neat trick, and I've used it a lot -- but worth pointing out that this should really only be done over a local network. X11 apps tend to be VERY chatty, and very slow when forwarded over the internet. I'd recommend VNC or FreeNX to do remote X11 apps over the internet.